i prefer using this rather than the usual jeju mask is because of it's sanitary side where it's more clean that using the usual clay mask. i usually use this on my face and my neck, after using it for 15-20 minutes the area that's more dense like around the "T" zone it'll not be dry yet but the other areas will be dry and its feels very hard to talk. after washing it off it feels like all my black heads are out and my pores are clean.
I have normal to dry skin, which means I usually don't find significant problem with my skin but unproper treatment can cause my skin dry. So at first I was very cautious about using this product which works by absorbing oil and dirt from my face. That's also why I chose the mousse variant which is said milder than the original clay mask. After first use, I can't see a significant difference. But with regular use I noticed that my pores around my nose are shrunk and visible blackheads are reduced. On the other hand, when I stopped using it for at least two weeks straight, I noticed more blackheads on my nose. This mask doesn't cause dryness to my skin, but I'm still very careful in using it. I never use it more than once a week and never leave it more than 15 minutes on my face. I also only use it in the areas which often have excess oil or where I have acne. It's also important to note that one should rinse this mask with warm water, otherwise it won't effectively clean the dirt.